SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Function bitmapMax (children 1)
     ExpressionList (children 1)
      Function bitmapBuild (children 1)
       ExpressionList (children 1)
        Function emptyArrayUInt32 (children 1)
         ExpressionList